NUR 170
Medical-Surgical Nursing Exam
2 Comprehensive Review
Exam Review • High-Yield Practice
UPDATE
Actual Questions & Verified Answers
with Detailed Clinical Rationales
Practice Questions with Rationales
Galen College of Nursing
NUR 170
✓ 100% Verified Answers
✓ Complete Rationales Included
Exam (elaborations)
Instant PDF Download • Ready for Study
,NUR 170 Medical-Surgical Nursing Exam 2 Comprehensive Review 2026/2027 UPDATED –
Galen
1. A patient’s arterial blood gas (ABG) results are: pH 7.25, PaCO2 50 mmHg, and HCO3 24
mEq/L. Which acid-base imbalance does this represent?
A. Respiratory Acidosis
B. Metabolic Acidosis
C. Metabolic Alkalosis
D. Respiratory Alkalosis
Answer: A
Rationale: The pH is low (<7.35) indicating acidosis. The PaCO2 is high (>45 mmHg),
which corresponds with the acidic pH, indicating a respiratory cause.
2. Which electrolyte imbalance is most closely associated with the presence of U-waves on an
electrocardiogram (ECG)?
A. Hypokalemia
B. Hypocalcemia
C. Hyperkalemia
D. Hypermagnesemia
, Answer: A
Rationale: Hypokalemia (low potassium) typically presents with flattened T waves, ST
segment depression, and the appearance of U-waves.
3. A nurse is caring for a patient with a serum sodium level of 128 mEq/L. Which nursing
intervention is a priority?
A. Encouraging increased fluid intake
B. Administering hypotonic IV fluids
C. Implementing seizure precautions
D. Encouraging a low-salt diet
Answer: C
Rationale: Hyponatremia (Sodium < 135) can cause cerebral edema and increase the risk
for seizures; therefore, safety and seizure precautions are a priority.
4. During the preoperative assessment, a patient reports an allergy to bananas and avocados.
Which action should the nurse take?
A. Document the food allergy and proceed as normal
B. Administer an antihistamine immediately
C. Notify the surgical team of a potential latex allergy
D. Cancel the surgery due to nutritional risk
Answer: C
Medical-Surgical Nursing Exam
2 Comprehensive Review
Exam Review • High-Yield Practice
UPDATE
Actual Questions & Verified Answers
with Detailed Clinical Rationales
Practice Questions with Rationales
Galen College of Nursing
NUR 170
✓ 100% Verified Answers
✓ Complete Rationales Included
Exam (elaborations)
Instant PDF Download • Ready for Study
,NUR 170 Medical-Surgical Nursing Exam 2 Comprehensive Review 2026/2027 UPDATED –
Galen
1. A patient’s arterial blood gas (ABG) results are: pH 7.25, PaCO2 50 mmHg, and HCO3 24
mEq/L. Which acid-base imbalance does this represent?
A. Respiratory Acidosis
B. Metabolic Acidosis
C. Metabolic Alkalosis
D. Respiratory Alkalosis
Answer: A
Rationale: The pH is low (<7.35) indicating acidosis. The PaCO2 is high (>45 mmHg),
which corresponds with the acidic pH, indicating a respiratory cause.
2. Which electrolyte imbalance is most closely associated with the presence of U-waves on an
electrocardiogram (ECG)?
A. Hypokalemia
B. Hypocalcemia
C. Hyperkalemia
D. Hypermagnesemia
, Answer: A
Rationale: Hypokalemia (low potassium) typically presents with flattened T waves, ST
segment depression, and the appearance of U-waves.
3. A nurse is caring for a patient with a serum sodium level of 128 mEq/L. Which nursing
intervention is a priority?
A. Encouraging increased fluid intake
B. Administering hypotonic IV fluids
C. Implementing seizure precautions
D. Encouraging a low-salt diet
Answer: C
Rationale: Hyponatremia (Sodium < 135) can cause cerebral edema and increase the risk
for seizures; therefore, safety and seizure precautions are a priority.
4. During the preoperative assessment, a patient reports an allergy to bananas and avocados.
Which action should the nurse take?
A. Document the food allergy and proceed as normal
B. Administer an antihistamine immediately
C. Notify the surgical team of a potential latex allergy
D. Cancel the surgery due to nutritional risk
Answer: C
